Release film corner cutting device

By combining the air shaft, hydraulic cylinder, and guide wheel, the problem of the release film cutting device being unable to adjust its size was solved, realizing the multi-size adaptability and transmission stability of the cutting device, and improving the cutting quality of the release film.

CN224012435UActive Publication Date: 2026-03-20JIUYU ELECTRONIC TECH (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing release film cutting devices cannot adjust the cutting size as needed, which affects the quality of the cut release film and makes it prone to curling and displacement during the conveying process.

Method used

The system employs an air shaft and hydraulic cylinder in conjunction with forward and reverse spiral rollers and a slide rail structure. The air shaft expands and squeezes the release film to maintain tension, while the hydraulic cylinder drives the limiting plate to press the release film. Guide wheels assist in conveying the film, and a motor drives the cutting blade to adjust the spacing to meet different size requirements.

Benefits of technology

It enables flexible adjustment of the release film cutting size, improves the flatness and stability during the conveying process, and avoids the impact on the quality after cutting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of release film production, in particular to a release film corner cutting device which comprises a working table, mounting plates, a supporting frame A, a supporting frame B and a cutting knife, the mounting plates are arranged on the two sides of the top of the working table, an air expansion shaft and a conveying roller are arranged between the mounting plates, and the air expansion shaft and the conveying roller are connected with the cutting knife. A supporting frame A is arranged on the side, corresponding to the mounting plate, of the top of the workbench, and a limiting plate is arranged at the bottom of the supporting frame A; supporting frames B are arranged in the center of the top of the workbench, a forward and reverse spiral roller and a sliding rail are arranged between the supporting frames B, a motor B is arranged on the top of one side of each supporting frame B, and cutting knives are arranged at the bottoms of the two ends of each forward and reverse spiral roller. The motor B is started to drive the forward and reverse spiral roller to rotate, so that the sliding sleeve and the connecting rod are driven to move along the sliding rail, the distance between the cutting knives is conveniently adjusted, and the requirement of a user for various cutting sizes of the release film is met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the production technical field of release film, specifically relates to a release film corner cutting device. BACKGROUND

[0002] Release film refers to the film surface energy has the film that distinguishes, release film and specific material contact under the limited condition do not have the adhesion, or slight adhesion, release film is widely used in electronic, automobile foam, printing and other fields.

[0003] Because the release film is light in quality and low in thickness, edge curling and displacement often occur during cutting, which affects the quality of the cut release film. Most cutting devices cannot adjust the cutting size as needed, resulting in low adaptability. Therefore, a release film corner cutting device is proposed to meet the size requirements of users cutting various release films, improve the flatness and stability of the release film during transmission, and avoid affecting the quality of the cut release film. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides a release film corner cutting device to meet the size requirements of users cutting various release films, improve the flatness and stability of the release film during transmission, and avoid affecting the quality of the cut release film.

[0005] The utility model solves the technical problems by adopting a release film corner cutting device, which comprises a workbench, a mounting plate, a support frame A, a support frame B and a cutting knife. The top of the workbench is provided with mounting plates on both sides, and the mounting plates are provided with air expansion shafts and conveying rollers respectively. One side of the top of the workbench corresponding to the mounting plate is provided with a support frame A, and the bottom of the support frame A is provided with a limiting plate.

[0006] The center of the top of the workbench is provided with a support frame B, and the support frame B is provided with forward and reverse spiral rollers and sliding rails respectively. One side of the top of the support frame B is provided with a motor B, and the ends of the forward and reverse spiral rollers are provided with cutting knives.

[0007] Specifically, the top of one side of the mounting plate is provided with a motor A, and the driving end of the motor A is connected with the air expansion shaft through a shaft. The air expansion shaft and the conveying roller surface are in contact with each other.

[0008] Specifically, the bottom of the support frame A is provided with oil cylinders at both ends, and the driving end of the oil cylinder is connected with the limiting plate through a screw. The bottom of the limiting plate is provided with a guide wheel connected with a shaft in the reserved slot.

[0009] Specific, the positive and negative spiral roller periphery both ends are sleeved with a sliding sleeve, the sliding sleeve top is fixedly connected with a connecting rod through screws, the connecting rod top is slidably connected with a slide rail through a sliding block, the sliding sleeve bottom is equipped with an electric push rod, the electric push rod bottom driving end is connected with a cutting knife through screws.

[0010] Specific, the motor B driving end is connected with the positive and negative spiral roller through a rotating shaft.

[0011] The beneficial effects of the utility model are as follows:

[0012] (1) the utility model discloses a kind of off film corner cutting devices, positive and negative spiral roller is driven to rotate by starting motor B, to facilitate the spacing between cutting knife, meet the requirement of multiple sizes of off film cutting of user, to move along slide rail with sliding sleeve and connecting rod.

[0013] (2) the utility model discloses a kind of off film corner cutting devices, the air inflation shaft surface protruding portion is inflated to be expanded, the air between off film is extruded, to ensure that off film between during conveying will not appear gap or deviation, then by oil cylinder driving limit plate moves downward, press off film close to workbench, cooperate with guide wheel and assist its conveying, avoid off film uneven in the process of transmission, improve the flatness and stability of off film in the process of transmission. DETAILED DESCRIPTION

[0014] The utility model is further described below in connection with drawings and embodiment.

[0015] Figure 1 It is the whole schematic view of the utility model;

[0016] Figure 2 It is the workbench top schematic view of the utility model;

[0017] Figure 3 It is the support frame B schematic view of the utility model;

[0018] In the drawing: 1, workbench;2, mounting plate;3, air inflation shaft;4, conveying roller;5, motor A;6, support frame A;7, oil cylinder;8, limit plate;9, guide wheel;10, support frame B;11, positive and negative spiral roller;12, slide rail;13, motor B;14, sliding sleeve;15, connecting rod;16, electric push rod;17, cutting knife. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in connection with specific embodiment.

[0020] In order to facilitate the user to cut the size requirements of various release film, and improve the flatness and stability of the release film in the process of conveying, avoid the quality of the release film after cutting is affected, such as Figures 1-3 The utility model discloses a release film corner cutting device, including workbench 1, mounting plate 2, support frame A6, support frame B10 and cutting knife 17, the both sides of workbench 1 top are equipped with mounting plate 2, be equipped with air inflation shaft 3 and conveying roller 4 respectively between mounting plate 2, workbench 1 top corresponds the side of mounting plate 2 and is equipped with support frame A6, the bottom of support frame A6 is equipped with limiting plate 8,

[0021] The top center of workbench 1 is equipped with support frame B10, and the opposite screw rollers 11 and slide rails 12 are respectively arranged between the support frame B10, the motor B13 is arranged on one side of the top of the support frame B10, and the cutting knives 17 are arranged on the bottom of the opposite screw rollers 11.

[0022] In use, the release film is wound on the air inflation shaft 3, the air inflation shaft 3 is inflated by inflating the convex part on the surface of the air inflation shaft 3, the air between the release films is extruded, the motor A5 drives the air inflation shaft 3 to rotate and cooperates with the conveying roller 4 to limit and convey the air inflation shaft 3, so that the surface is always in a tension state, so that the air gap or deviation between the release films during conveying is avoided, and the flatness and stability of the release film during conveying are improved.

[0023] The limiting plate 8 is driven by the oil cylinder 7 to move downward, the release film is pressed close to the workbench 1, and the guiding wheel 9 is used to assist conveying, so that cutting is facilitated, and the release film is limited, so that the release film is not uneven during conveying, and the deviation of the release film during cutting is avoided.

[0024] The motor B13 is started to drive the opposite screw rollers 11 to rotate, so that the sliding sleeve 14 and the connecting rod 15 move along the slide rail 12, so that the distance between the cutting knives 17 is adjusted, the size requirements of the user are met, and the cutting knife 17 is driven downward by the electric push rod 16, so that the release film is cut during conveying.

[0025] In order to improve the flatness and stability of the release film during cutting, as shown in Figure 1 , Figure 2 The utility model discloses a release film corner cutting device, including workbench 1, mounting plate 2, support frame A6, support frame B10 and cutting knife 17, the both sides of workbench 1 top are equipped with mounting plate 2, be equipped with air inflation shaft 3 and conveying roller 4 respectively between mounting plate 2, workbench 1 top corresponds the side of mounting plate 2 and is equipped with support frame A6, the bottom of support frame A6 is equipped with limiting plate 8,

[0026] In use, the air inflation shaft 3 is inflated by inflating the convex part on the surface of the air inflation shaft 3, air between the release film wound on the surface of the air inflation shaft 3 is extruded, the motor A5 drives the air inflation shaft 3 to rotate and cooperates with the conveying roller 4 to limit and convey the air inflation shaft 3, so that the surface of the air inflation shaft 3 is always in a tension state, so that the release film does not appear gap or deviation during conveying, and the flatness and stability of the release film during conveying are improved.

[0027] As shown in Figure 1 , Figure 2 illustrated, the utility model also includes, oil cylinder 7 is established at both ends of support frame A6 bottom, oil cylinder 7 bottom drive end is connected with limiting plate 8 through screw, limiting plate 8 bottom reservation slot is connected with guide wheel 9 through pivot.

[0028] In use, the oil cylinder 7 drives the limiting plate 8 to move downward, and presses the release film close to the workbench 1, and cooperates with the guide wheel 9 to assist conveying, which facilitates cutting and limits the release film, avoids unevenness of the release film during conveying, and ensures that the release film does not deviate during cutting.

[0029] As shown in Figure 1 , Figure 3 illustrated, the utility model also includes, the outer periphery both ends of positive and negative spiral roller 11 are all sleeved with sliding sleeve 14, sliding sleeve 14 top is fixed with connecting rod 15 through screw, connecting rod 15 top is slidably connected with slide rail 12 through sliding block, sliding sleeve 14 bottom is equipped with electric push rod 16, electric push rod 16 bottom drive end is connected with cutting knife 17 through screw.

[0030] As shown in Figure 1 , Figure 3 illustrated, the utility model also includes, motor B13 drive end is connected with positive and negative spiral roller 11 through pivot.

[0031] In use, the motor B13 drives the positive and negative spiral roller 11 to rotate, so as to drive the sliding sleeve 14 and the connecting rod 15 to move along the slide rail 12, so as to facilitate adjusting the distance between the cutting knives 17, meet the requirements of various sizes of users, and then drive the cutting knives 17 to move downward through the electric push rod 16, which is convenient for cutting the release film during conveying.

[0032] In use, the release film is wound on the air inflation shaft 3, the air inflation shaft 3 is inflated by inflating the convex part on the surface of the air inflation shaft 3, air between the release film is extruded, the motor A5 drives the air inflation shaft 3 to rotate and cooperates with the conveying roller 4 to limit and convey the air inflation shaft 3, so that the surface of the air inflation shaft 3 is always in a tension state, so that the release film does not appear gap or deviation during conveying, and the flatness and stability of the release film during conveying are improved;

[0033] The limiting plate 8 is driven by the oil cylinder 7 to move downwards, and the release film is pressed close to the workbench 1, the guiding wheel 9 is used for assisting the conveying of the release film, the cutting is facilitated, the release film is limited, the unevenness of the release film in the conveying process is avoided, and the deviation of the release film in the cutting is avoided.

[0034] The motor B13 is started to drive the positive and negative spiral roller 11 to rotate, so that the sliding sleeve 14 and the connecting rod 15 are moved along the sliding rail 12, the distance between the cutting knives 17 is adjusted, the requirements of various sizes of users are met, and the cutting knife 17 is driven to move downwards through the electric push rod 16.

[0035] The basic principle, main characteristics and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only used to illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and the changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A release film edge cutting device, characterized in that, The workbench (1), mounting plate (2), support frame A (6), support frame B (10) and cutting blade (17) are provided. Mounting plates (2) are provided on both sides of the top of the workbench (1). An air shaft (3) and a conveyor roller (4) are respectively provided between the mounting plates (2). Support frame A (6) is provided on the side of the top of the workbench (1) corresponding to the mounting plate (2). A limiting plate (8) is provided at the bottom of the support frame A (6). The workbench (1) is provided with a support frame B (10) at the top center. The support frame B (10) is provided with a forward and reverse spiral roller (11) and a slide rail (12) respectively. A motor B (13) is provided on the top of one side of the support frame B (10). Cutting blades (17) are provided at the bottom of both ends of the forward and reverse spiral roller (11).

2. The release film edge cutting device according to claim 1, characterized in that, The mounting plate (2) has a motor A (5) on one side top, and the driving end of the motor A (5) is connected to the air shaft (3) through a rotating shaft. The air shaft (3) is in contact with the surface of the conveyor roller (4).

3. The release film edge cutting device according to claim 1, characterized in that, The support frame A (6) is equipped with hydraulic cylinders (7) at both ends of the bottom. The driving end of the hydraulic cylinder (7) is connected to the limiting plate (8) by screws. The guide wheel (9) is connected to the reserved groove at the bottom of the limiting plate (8) by a rotating shaft.

4. The release film edge cutting device according to claim 1, characterized in that, Both ends of the positive and negative spiral rollers (11) are fitted with sliding sleeves (14). The top of the sliding sleeves (14) is fixed with a connecting rod (15) by screws. The top of the connecting rod (15) is slidably connected to the slide rail (12) by a slider. The bottom of the sliding sleeves (14) is provided with an electric push rod (16). The bottom drive end of the electric push rod (16) is connected to the cutting blade (17) by screws.

5. The release film edge cutting device according to claim 1, characterized in that, The drive end of the motor B (13) is connected to the positive and negative spiral rollers (11) via a rotating shaft.